Miguel de Icaza (born c. 1972) is a Mexican-born programmer, best known for starting the GNOME, Mono, and Xamarin projects.
De Icaza was born in Mexico City and studied at the Universidad Nacional Autonoma de México (UNAM), but never received a degree. He came from a family of scientists in which his father is a physicist and his mother a biologist. He started writing free software in 1992.
One of the earliest pieces of software he wrote for Linux was the Midnight Commander file manager, a text-mode file manager. He was also one of the early contributors to the Wine project.
He worked with David S. Miller on the Linux SPARC port and wrote several of the video and network drivers in the port, as well as the libc ports to the platform. They both later worked on extending Linux for MIPS to run on SGI's Indy computers and wrote the original X drivers for the system. With Ingo Molnar he wrote the original software implementation of RAID-1 and RAID-5 drivers of the Linux kernel.